This is an authentic ROBERTO COIN 18K White Gold Diamond Open Heart Drop Pendant Necklace. The necklace is crafted of 18 karat white gold and features a dropping heart shaped pendant on a diamond station chain, with approximately .69 total carat weight of diamonds and two synthetic rubies on the back of the pendant and on the chain tag. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.